Home / 15,087.78-20,825.96-10,624.59

Finding the Fourth Proportional to 15,087.78, 20,825.96 and 10,624.59

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Solution

The fourth proportional to 15,087.78, 20,825.96 and 10,624.59 is: 14,665.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,087.78 : 20,825.96 = 10,624.59 : x
  2. Step 2: Convert to fraction form
    15,087.78/20,825.96 = 10,624.59/x
  3. Step 3: Cross multiply
    15,087.78x = 20,825.96 × 10,624.59
  4. Step 4: Simplify right side
    15,087.78x = 221,267,233.23
  5. Step 5: Solve for x
    x = 221,267,233.23/15,087.78
  6. Step 6: Final answer
    x = 14,665.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.